#!/usr/bin/env python
#
#       Angles.py
#       
#       Copyright 2009 Ben Davis <its.hip@gmail.com>, Pete Lord <mr.petelord@gmail.com>
#       
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation; either version 2 of the License, or
#       (at your option) any later version.
#       
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#       GNU General Public License for more details.
#       
#       You should have received a copy of the GNU General Public License
#       along with this program; if not, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#       MA 02110-1301, USA.

class Angle(int):
   # modified int that stores values between 0 and 8, used for 8 directional sprites et al.
    def __new__(self, amount):
        return int.__new__(self, amount % 8)
       
    def __add__(self, other):
        return Angle(int.__add__(self, other) % 8)
       
    def __sub__(self, other):
        return Angle(int.__sub__(self, other) % 8)
       
